Home / 1,438,778.20-1,985,514.30-794,198.80

Finding the Fourth Proportional to 1,438,778.20, 1,985,514.30 and 794,198.80

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Solution

The fourth proportional to 1,438,778.20, 1,985,514.30 and 794,198.80 is: 1,095,994.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,778.20 : 1,985,514.30 = 794,198.80 : x
  2. Step 2: Convert to fraction form
    1,438,778.20/1,985,514.30 = 794,198.80/x
  3. Step 3: Cross multiply
    1,438,778.20x = 1,985,514.30 × 794,198.80
  4. Step 4: Simplify right side
    1,438,778.20x = 1,576,893,074,442.84
  5. Step 5: Solve for x
    x = 1,576,893,074,442.84/1,438,778.20
  6. Step 6: Final answer
    x = 1,095,994.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.